Natalie Portman keeps things casual in a yellow T-shirt and denim shorts in Sydney

Natalie Portman is currently in Australia filming the next Thor sequel. 

And on Monday, the actress cut a casual figure as she stepped out for lunch in Sydney’s eastern suburbs with her husband Benjamin Millepied and their children.

The 39-year-old kept cool for the summer in a bright yellow T-shirt and a pair of denim shorts.

She accessorised with a pair of dark sunglasses and a black cross body handbag.

Benjamin was just as casual in a pair of camel coloured pants and a relaxed blue sweatshirt.

Natalie has thoroughly enjoyed herself in Australia over the last few months.

In November, she was photographed sipping a glass of wine at Nielsen Park Beach in Sydney’s Vaucluse.

And just last week, she enjoyed some down time and went horse riding in Centennial Park.

Thor is only just starting to take shape as filming began at Fox Studios in Sydney last month.

The blockbuster will see Natalie’s character, astrophysicist Jane Foster, take up the mantle of Thor after transforming into a female version of the Norse god.

‘It’s going to be really silly and funny and great,’ Natalie recently said of the project.

Explaining how she was approached for the film, she told ET last year how exciting the project was to her.

‘They came to me with the idea and said, ”we have this idea for you that was a storyline in some of the comics where Jane becomes Lady Thor,” and I was like, ”this is very exciting!”

Natalie was absent for 2017’s Thor: Ragnarok, but was a key player in the first two Thor films in 2011 and 2013.